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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARIA SINIS DMD LTD
NPI 1669782736
Dentist - General Practice in Chicago, IL

Active since October 07, 2010
6428 N CALIFORNIA AVE, CHICAGO, IL 60645(773) 973-0531(773) 262-9850 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

About Maria Sinis Dmd Ltd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARIA SINIS DMD LTD (NPI 1669782736) is a healthcare organization registered as a general practice in Chicago, Illinois and active in the NPI registry since October 2010. The organization lists Maria Sinis Contos, President, as its authorized official.

NPPES Registry Identity

NPI1669782736
Entity TypeOrganization
Primary Taxonomy1223G0001X
Legal Business NameMARIA SINIS DMD LTD
Location Address6428 N CALIFORNIA AVEChicago, IL 60645-5209
Mailing Address833 Chatham RdGlenview, IL 60025-4405 · (954) 663-6804 · Fax (773) 293-6910
Phone(773) 973-0531
Fax(773) 262-9850
Organization SubpartNo
Authorized OfficialMaria Sinis ContosPresident · (954) 663-6804
Enumeration DateOctober 7, 2010
Last NPPES UpdateSeptember 10, 2026
NPPES CertifiedSeptember 10, 2026
✔ NPI 1669782736 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers
Taxonomy Code1223G0001X
Definition
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
6428 N CALIFORNIA AVE, Chicago, IL 60645
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PREFERRED DENTISTRY ASSOCIATES, LLC
Dentist (General Practice)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 942-7348
POSITIVELY FOCUSED, LLC
Clinical Neuropsychologist
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 710-3354
DR. PETER A. CONTOS D.D.S.
Dentist (General Practice)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 973-0531
DR. ARISTIDES P CONTOS DDS
Dentist (General Practice)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 973-0531
CONTOS SMILE CENTER, LTD.
Dentist (General Practice)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 973-0531
NICOLE J HARTMANN RDH
Dental Hygienist
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (847) 804-9429
WISCONSIN MOBILE DENTAL CARE LLC
Clinic/Center (Dental)
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (847) 804-9429
DR. MARTHA J BOCKIAN PH.D.
Clinical Neuropsychologist
6428 N CALIFORNIA AVE
CHICAGO, IL 60645
Cook County (773) 710-3354

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maria Sinis Dmd Ltd's NPI number?

The NPI number for Maria Sinis Dmd Ltd is 1669782736. It was assigned to this organization in the NPPES registry on October 7, 2010.

Where is Maria Sinis Dmd Ltd located?

Maria Sinis Dmd Ltd is located at 6428 N California Ave, Chicago, IL 60645. The listed phone number is (773) 973-0531.

What is Maria Sinis Dmd Ltd's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

What insurance does Maria Sinis Dmd Ltd accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Maria Sinis Dmd Ltd as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Maria Sinis Dmd Ltd was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.